TW201318902A - Two-way control system and control method for vehicle front seat audio device and rear seat entertainment device - Google Patents

Abstract

A two-way control system and control method for vehicle front seat audio device and rear seat entertainment device are disclosed, wherein the system comprises vehicle front seat audio device, a rear seat entertainment device and a connection wire. The control method comprises the following steps: utilizing the connection wire as a two-way transmission channel capable of duplicating signals and screens of the vehicle front seat audio device or the rear seat entertainment device and transmitting to each other. By controlling physical buttons and operating the touch panel, signals and screens can be performed with two-way control and transmission through the connection wire.

Description

Two-way control system and control method for front seat audio device and rear seat entertainment device

The invention relates to a two-way control system and a control method for a front seat audio device and a rear seat entertainment device for a vehicle, which uses the connection line as a two-way transmission channel, so that the signal and the picture can be mutually controlled via the connection line. Transmitter.

According to the development of car audio, more and more functions, from the beginning of the radio module function, increase the cassette function, followed by the increase of CD player, DVD player, navigation and Bluetooth, in order to integrate these electronic devices into First, the industry continues to introduce a variety of related products, as shown in the first figure, is a public patent before the case (TW Bulletin No.: 593021), which is a computer system that integrates the vehicle electronic device, is the electronic on the car The device 92 is controlled by a computer system 91. The electronic device 92 includes an audio device 921, an anti-theft device 922, a navigation device 923, a vehicle condition diagnosis device 924, and a reverse assist device 925. The housing 912 is housed in a housing 912. The rear side of the housing 912 is provided with a plurality of connecting ports 915. The front side of the housing 912 is provided with an operation panel 914. The housing 912 is mounted on the dashboard of the vehicle. Industry Normen) standard size, and the computer host 911 can execute at least one operating system or at least one software program, and the operation panel 914 is provided with a plurality of connection slots 916, which can be connected to at least one An external electronic device, the control panel 914 is used to control the computer host 911, and the computer host 911 is further connected with a display 913 for displaying text or image information, and the display 913 is provided with a touch screen 917. Touching the touch screen 917 to input data, the port 915 can be connected to all the electronic devices 92 on the vehicle to integrally control all the electronic devices 92, but the previous case is a single computer system, so the current and the rear seats are When a computer system is installed, control problems occur.

As mentioned above, in other related patent cases, the following citations are still available, for example:

(1) Citation 1 (TW Invention No. I304777) is a vehicular computer system including a main computer-mode switch and a backup microprocessor; when the main computer is in normal operation, the mode switch is preset In a normal mode, the host computer can control various operations of various on-board electronic devices (eg, DVD player, MP3 player, GPS, etc.) through various graphic interfaces on a display, but if the host computer is down In the situation, the mode switch can be switched to a backup mode, and the backup microprocessor is controlled by the backup microprocessor to capture the backup graphic interface in the spare storage unit, and is processed and displayed on the display. In the above, the driver will continue to control the corresponding electronic device on the display through the redundant graphic interface on the display. The reference 1 discloses the technology of a car audio dual computer system, but it is a backup system for another computer system. It is impossible to control the mutual control between the front seat system and the rear seat system.

(2) Citation 2 (TW Public Number: 200519615) is a touch panel integrated device, which is mainly applied to the display model information and multiple inputs of automobiles, and can be used for vehicle speed, thermal control instrument, audio control panel, and video media device. Information such as communication, satellite navigation, etc. are combined and displayed on a touch panel through graphical symbols or symbols, and the display screen is displayed by touching the screen to display the functional control windows. Then, by touching the symbols or symbols represented by the functions on the control window to achieve the purpose of operation, the citation 2 discloses a combination of a car audio and a touch screen, but it is controlled by a single computer system and cannot be used as a front seat. Mutual control of the system and the rear seat system.

(3) Citation 3 (TW Public Number: 200526443) is a driving computer that can integrate computer peripheral information, mainly including a vehicle control host and a vehicle operating system. The vehicle control host has at least one central processing unit and a plurality of Data transmission interface, and the central processing unit can process driving information, including engine parameter setting, driving record and control record, and can output driving information to a man-machine interface through the data transmission interface; the vehicle operating system can read the man-machine The input command on the operation interface supports a plurality of external output/input signals, including keyboard, mouse, voice encoding/decoding, and video and audio control signals, to achieve resource integration. The citation 3 discloses a car audio and a vehicle The combination of the operating system technology, but it is controlled by a single computer system, and it is impossible to control the mutual control between the front seat system and the rear seat system.

(4) Citation 4 (TW Publication No.: 200621023) is a vehicle-type audio-visual computer module in which a touch display panel is disposed on a module housing adjacent to the front end surface, in the vehicle-type audio-visual computer. The inside of the module has an audio-visual device, and the direction of the audio-visual media access slot faces the front end surface of the module housing, and the module housing is inserted into the module of the car console with its rear end surface aligned When the device is placed in the slot, the audio-visual media access slot of the touch display panel and the audio-visual device is oriented toward the driver of the car console, and the touch display panel and the module housing are rotatable The mechanism is connected, and a signal connector is disposed on the rear end surface of the module housing, so that the module housing is aligned with the rear end surface of the module into the module insertion slot of the automobile console, the signal connector Inserting a signal socket connected to the module insertion slot body, the reference 4 discloses a technology in which a car center console is combined with a detachable vehicle computer module, but the control is not controlled by a single computer system. Do the mutual control between the front seat system and the rear seat system.

(5) Citation 5 (TW New Type M289129) is a computerized multifunctional personal service device for vehicles, which mainly comprises: a processing module, which sets and executes various core functions of the device; an input device for the user Inputting a command to the device, processing the module by the processing module, and having one of the functions of the device; an output device, being commanded by the input device and the processing module, and performing a function of outputting audio and sound; and a data storage module The group stores the media files converted by the multimedia conversion unit of the processing module, and various other file materials. The citation case 5 provides a plurality of multimedia functions to the user by one device, so that the user can use only one device. Enjoy multimedia audio and video, backup, satellite navigation, digital photo review playback and application use. Although it reveals a combination of car audio and computer technology, it can control the single computer system and combine the vehicle expansion device, but can not be used as a front seat system. Control each other with the rear seat system.

(6) Citation 6 (TW Invention No. I279343) is a multimedia transmission device for vehicles, which is provided with an audio and video input port outside a multi-function audio source switching device, which can be connected through a corresponding audio-visual connection line. Different digital multimedia devices, the digital audio and video data stored by the digital multimedia device is decompressed and separated by the internal processing unit, and then transmitted to a car multimedia audio through the integrated external audio and video signal integration interface, thereby being To achieve the integration of car multimedia audio and digital multimedia, the citation 6 reveals the technology of combining car audio with external car multimedia, but it connects the external audio and video device signal into the car audio, and cannot make the front seat system and the rear seat system. control.

(7) Citation 7 (TW Invention No. I314528) is a car audio host for simulating a human-machine operation interface, thereby controlling an electronic computing device having an operating system to perform at least one predetermined job, and the car audio host includes An operation interface and a micro control unit, the operation interface includes a trigger component and at least one operation signal input component, and the micro control unit includes an interface function setting program, and when the trigger component is triggered, a trigger signal is generated, and the micro control After receiving the trigger signal, the interface function setting program can define a predetermined work represented by the working signal input component; then when the working signal input component is triggered, the micro control unit outputs a working signal to the electronic computing device to make the electronic computing device Executing the above-mentioned predetermined work, although the reference 7 discloses the technology of combining the car audio with the computer, it is controlled by a single computer system and combined with the vehicle expansion device, and the front seat system and the rear seat system cannot be mutually controlled.

(8) Citation 8 (TW No. M253165) is an integrated multimedia microcomputer device including a system chip including a general-purpose processor, a sound processor and an image processor, the general-purpose processor The system is responsible for the processing of an operating system and a plurality of applications, and has a memory for storing data, and a video output interface is connected to the sound processor and the image processor for outputting the processed sound and image data. The processor is coupled to a memory media interface and a plurality of connection interfaces to form an electrical connection relationship with the memory medium and the external electronic device to enable the general-purpose processor to execute the electronic device through the execution of the applications. The device transmits and communicates signals. The citation 8 discloses a combination of a car audio and a computer, but it is controlled by a single computer system and combined with a vehicle expansion device, but cannot control the mutual control between the front seat system and the rear seat system.

In view of the fact that the reference cases of the formula can not achieve the lack of mutual control between the front seat system and the rear seat system, the inventor of the present invention has finally completed the two-way control system of the front seat audio device and the rear seat entertainment device of the present invention after numerous improvements. And control methods.

That is, the first object of the present invention is to provide a system for bidirectional mutual control and transmission via a connecting line, whereby the front seat audio device and the rear seat entertainment device can be controlled and transmitted in both directions.

Another object of the present invention is to provide a method for bidirectional mutual control and transmission via a connecting line, whereby the front seat audio device and the rear seat entertainment device can be controlled and transmitted in both directions.

In order to achieve the above object of the present invention, a two-way control system for a front seat audio device and a rear seat entertainment device for a vehicle includes a front seat audio device, a rear seat entertainment device and a connecting line, wherein: the vehicle The front seat audio device includes a first central processing unit, a first sound output unit, a first touch screen, a first connection interface, and a video input button, and the first central processing unit processes each interface. And an operation program between the units; the rear seat entertainment device comprises a second central processing unit, a second sound output unit, a second touch screen, a second connection interface, a remote start button and an OSD button The second central processing unit processes the operation procedures of the interfaces and the units; a connection line connects the first connection interface of the vehicle car audio with the second connection interface of the rear seat entertainment device, The connecting line is used as a two-way transmission channel; by using the above components, the connecting line is used as a two-way transmission channel, and the first touch firefly of the front seat audio device of the vehicle is used. The coordinate signal is transmitted to the rear seat entertainment device, and the coordinate signal and the OSD button group signal on the second touch screen of the rear seat entertainment device are transmitted to the front seat audio device of the vehicle, and the front seat audio device of the vehicle The picture is copied to the screen of the rear seat entertainment device, and the screen of the rear seat entertainment device is copied to the screen of the front seat audio device, and the video input button of the front seat audio device and the remote control of the rear seat entertainment device are activated. The key system controls the switching button, and the car audio device and the rear seat entertainment device are operated by the touch screen, so that the control signal is mutually controlled and transmitted through the connection line.

In the above-mentioned rear seat entertainment device, the OSD button group is a function option displayed on the touch screen, and the function of the OSD button group includes the functions of the plurality of physical buttons of the front seat audio device, and the corresponding physical button Operational features.

The image transmitted by the above invention is an LVDS digital image.

The image transmitted by the above invention is a composite analog image.

The front seat audio device and the rear seat entertainment device of the present invention, wherein the first touch screen and the second touch screen are different in size, and the coordinates on the first touch screen and the second touch screen are The signal is scaled to the size of the other party and transmitted.

The rear seat entertainment device of the present invention further includes a main screen and a sub-screen, wherein the sub-screen is provided with a remote control button, and the main screen and the sub-screen pass through an adapter box and the front seat audio device of the vehicle. Connected to form a three-way interaction.

In the above two-way control system of the present invention, the control method includes a control method of a front seat audio device and a control method of a rear seat entertainment device, and the front seat audio device and the rear seat entertainment device pass through a connecting line. The screen and coordinate signals transmitted by the other party are always received by each other, but only one picture and one signal number are displayed at the same time. The control method of the front seat audio device includes the following control steps: Step A1, starting with the front seat of the vehicle The screen of the audio device then jumps to step A2; in step A2, the physical button is confirmed, the user can press the physical button of the corresponding function according to the use requirement, and the corresponding function appears on the first touch screen of the front seat audio device of the vehicle. The screen is used to control the operation of the corresponding electronic module, and then the user selects the screen option of the first touch screen, and the execution jumps back to step A1. If the physical button is not pressed, the process jumps to step A3; step A3, The video input key confirms that when the user presses the video input key, the user wants to control the rear seat entertainment device, and presses After the video input button, the operation screen of the first touch screen displays the OSD button group, and jumps to step A4, otherwise jumps back to step A1; step A4 displays the screen of the rear seat entertainment device, at which time the picture has been taken by the car The screen of the front seat audio device is switched to the screen of the rear seat entertainment device, and the second touch screen screen of the rear seat entertainment device is the picture in use at the time, and jumps to step A5; step A5, the first touch screen point Confirming that the user transmits the coordinate signal of the first touch screen to the rear seat entertainment device, and operates the electronic module function screen corresponding to the coordinates on the second touch screen screen of the rear seat entertainment device, and clicks the function The screen option on the screen, after the execution is completed, jump back to step A4. If not, skip to step A6; step A6, Click to confirm, if the user clicks on the OSD button group The key indicates that the front seat audio device of the vehicle is to be released from the control of the rear seat entertainment device, and jumps back to step A1; otherwise, if the confirmation is not clicked, it jumps back to step A4; the control method of the rear seat entertainment device includes the following Control step: Step B1, start the screen of the rear seat entertainment device 2, and then jump to step B2; Step B2, the second touch screen click to confirm, according to the user clicks on the coordinate signal of the second touch screen, and displays The rear seat entertainment device function screen, and then the screen option click operation, after the execution is completed, jump back to step B1, if not clicked, skip to step B3; step B3, the remote start button confirm, if the user presses the remote start button , the user wants to control the front seat audio device of the vehicle. After pressing the remote start button, the operation screen of the second touch screen displays the OSD button group, and jumps to step B4, otherwise jumps back to step B1; step B4 The screen of the front seat audio device of the vehicle is displayed. At this time, the screen of the rear seat entertainment device is switched to the screen of the front seat audio device, and the screen of the front seat audio device is When the screen is in use, then go to step B5; in step B5, the OSD button group click to confirm, the user can select the option of the OSD button group on the second touch screen selection function screen, and the execution jumps back to step B4. Conversely, if not selected, step B6 is performed; step B6, Click to confirm, if the user presses the OSD button group The key indicates that the rear seat entertainment device is to release the control for the front seat audio device of the vehicle, and jumps back to step B1; otherwise, the jump to step B4 is not selected.

Please refer to the second, fourth and eighth figures, the two-way control system for the front seat audio device and the rear seat entertainment device of the present invention, which comprises a front seat audio device for vehicle 1, a rear seat entertainment device 2 and a connection. Line 3, wherein: the front seat audio device 1 of the vehicle comprises: a first central processing unit 11 which integrates various interfaces, processes sound effects and images, processes audio files, and encodes and processes sounds. Processing the image file and performing image encoding and decoding and processing, and processing of each input signal; a first sound output unit 12 is connected to the first central processing unit 11, and the output is processed by the first central processing unit 11 The first sound output unit 12 can be a speaker, a headphone jack, and a wireless transmitter. The user inserts the earphone jack with a wired earphone, and listens to the sound of the first central processing unit 11 after the sound processing by the wired earphone. The wireless transmitter can be an infrared sound modulation transmitter, a wireless sound modulation transmitter, a Bluetooth sound modulation transmitter, etc., listening to the first medium with a wireless earphone The first processing unit 11 is connected to the first central processing unit 11 to display the image processed by the first central processing unit 11 and receive the user at the first The operation of the touch screen 13 is performed, and the coordinate signal is sent to the first central processing unit 11 for corresponding operation, and the screen of the rear seat entertainment device 2 can be displayed; a first connection interface 14 is connected to the connection line. 3 and the first central processing unit 11, the first connection interface 14 outputs a picture of the front seat audio device 1 of the vehicle and a coordinate signal on the first touch screen 13, and receives the picture of the rear seat entertainment device 2 a coordinate signal of the second touch screen 23 and an OSD button group 26 signal; a video input button 15 connected to the first central processing unit 11 is a control switch button, and the video input button 15 controls the front seat speaker The display screen of the device 1 is switched to the screen of the rear seat entertainment device 2 for controlling the rear seat entertainment device 2 by the front seat audio device 1; a plurality of physical buttons 16 are connected to the first central processing unit 11, for The control button of each electronic module function (the physical button 16 includes: a [RADIO] key system controls the radio module to receive AM, FM, etc.; a [NAVI] key controls the satellite navigation module to guide User driving direction; a [BT] button controls the Bluetooth module to answer the Bluetooth mobile phone or other Bluetooth products; a [MEDIA] button controls the multimedia player module, the multimedia player module is a DVD module, a a USB module, an SD module, an iPod module, and playing the read file data; a [MUTE] key system controls the mute to stop the first sound output unit 12 (or the second sound output unit 22) a [MENU] key provides a main menu for adjustment of contrast/color/saturation, etc.); at least a first electronic module 17 is connected to the first central processing unit 11 and is subjected to the physical button 16 And the control of the first touch screen group 26 and the first touch screen 13 and the second touch screen 23, the functions corresponding to the first electronic modules 17 are executed; the rear seat entertainment device 2 includes: a second Central processing unit 21, which integrates various interfaces, The operation program of the sound effect and the image, processing the sound file and performing the encoding and decoding and processing of the sound, processing the image file, performing image decoding and processing, and inputting signal processing; and a second sound output unit 22 connecting the second center The processing unit 21 outputs the sound after being processed by the second central processing unit 21, and the second sound output unit 22 can be a speaker, a headphone jack, a wireless transmitter, and the user inserts the earphone jack with a wired earphone. Listening to the sound processed by the second central processing unit 21 by the wired earphone; the wireless transmitter may be an infrared sound modulation transmitter, a wireless sound modulation transmitter, a Bluetooth sound modulation transmitter, etc., listening to the wireless earphone The sound is processed by the second central processing unit 21; a second touch screen 23 is connected to the second central processing unit 21, and displays the image processed by the second central processing unit 21, and receives the user's The operation of the second touch screen 23 sends the coordinate signal to the second central processing unit 21 for corresponding operation, and can display the vehicle before use. a second connection interface 24 is connected to the connection line 3 and the second central processing unit 21, and the second connection interface 24 outputs the screen of the rear seat entertainment device 2 and the second touch a coordinate signal of the screen 23 and a signal of the OSD button group 26, and receiving a picture of the front seat audio device 1 of the vehicle and a coordinate signal on the first touch screen 13; a remote start button 25 connected to the second center The processing unit 21 is a control switch button, and the remote start button 25 controls the display screen of the rear seat entertainment device 2 to switch to the screen of the front seat audio device 1 for controlling the front seat of the vehicle by the rear seat entertainment device 2. The audio device 1; an OSD button group 26 is a function option displayed on the second touch screen 23, and the function of the OSD button group 26 includes the functions of the plurality of physical buttons 16 of the front seat audio device 1 and Corresponding to the operation function of the physical button 16, the user selects the OSD button group 26 to operate the function screen of the front seat speaker device 1 and display the selected screen option. The function option of the OSD button group 26 is Including : A [RADIO] option controls the radio module to receive AM, FM and other channels; a [NAVI] option controls the satellite navigation module to guide the user's driving direction; a [BT] option controls the Bluetooth mode. The group listens to the Bluetooth mobile phone or other Bluetooth products; a [MEDIA] option controls the multimedia player module (such as DVD module, USB module, SD module, iPod module) to play the read file data; [MUTE] option, the control mute allows the first sound output unit 12 (or the second sound output unit 22) to stop sounding; a [MENU] option provides the main menu for contrast/color/saturation and other functions. Adjustment; an [A/V] option is an audio and video switching button for switching between different audio and video input modules; Option, is the return key to return to the last use state; Option, the volume is increased to make the sound louder; The option is to reduce the volume to make the sound smaller; at least one second electronic module 27 is connected to the second central processing unit 21, the OSD button group 26 and the first touch screen 13, and the second The control of the touch screen 23 performs the function corresponding to each electronic module 27; the connection line 3 is connected to the first connection interface 14 of the front seat audio device 1 and the second connection interface of the rear seat entertainment device 2 24, as its two-way transmission channel.

The format of the above sound effect file is usually CD, MP3, AC3, DTS, WMA, karaoke, etc., and can process the conversion of the text into a voice, and the text is played as a voice.

The above image files are those of MPEG I, MPEG II, MPEG IV, DivX, JPEG, M-JPEG and WMV, and the images transmitted by the images are LVDS digital images or composite analog images.

The above LVDS digital image is a low-voltage differential signaling (LVDS) for transmitting digital video signals. LVDS is an electronic signal system that meets the needs of today's high-performance data transmission applications. The voltage is reduced to 2 volts, which is suitable for TFT LCD display devices with higher resolution than SVGA. It has been widely used and can even be embedded in FPGAs, ASICs or other components; LVDS is a differential signal like USB and 1394; In November 1995, the ANSI/TIA/EIA-644 program "Electrical Characteristics of Low Voltage Differential Signaling (LVDS) Interface Circuits." completed the certification. It was introduced by National Semiconductor Corporation in 1994; LVDS uses differential transmission mode, voltage output and The receiving end requires a 100 ohm termination impedance (Terminating Resistor). LVDS allows the use of point-to-point and multi-drop connections to achieve differential signals using MS (Microstrip) lines or ST (Stripline). Line; composite analog image is to use the AV terminal to transmit analog images, AV terminal (Composite video connector Known as composite video), household appliances for transferring audio and video analog video (such as NTSC, PAL, SECAM) common terminal; the AV terminal is normally a yellow RCA terminal, with two additional red and white RCA terminal transmits audio. European TV sets usually replace the RCA terminals with SCART terminals, but SCART is designed to carry better RGB signals than YUV, so it is also used to connect monitors, TV games or DVD players in professional applications. Also, use BNC terminals for better signal quality.

The three terminal elements of the analog TV signal are transmitted in the AV terminal: Y, U, V, and the pulse signal as the synchronization reference; Y represents the brightness of the image (luminance), and contains the synchronization pulse. As long as there is a Y signal, you can see the black and white TV image (in fact, this is a method compatible with color TV and early black and white TV); the U signal and the V signal carry the color data, U and V are mixed first. Two sets of quadrature phases in one signal (this mixed signal is called chrominance, and then summed with the Y signal; because Y is the fundamental signal and UV is mixed with the carrier, so this plus The overall action is equivalent to frequency division multiplexing.

The first electronic module 17 of the vehicle front seat audio device 1 includes a DVD module, a satellite navigation module, a Bluetooth module, a radio module, a reversing camera module, and a USB module. The first electronic module 17 is connected to the first central processing unit 11 by an SD module, an iPod module, an operating system or at least one software program.

The second electronic module 27 of the rear seat entertainment device 2 includes a DVD module, a USB module, an SD module, a digital television module, a secondary screen module, and an operating system or at least one In the software program, the second electronic module 27 is connected to the second central processing unit 21.

The first electronic module 17 and the second electronic module 27 are a DVD module that can play CDs, MP3s, DVDs, and the like.

The first electronic module 17 is a satellite navigation module that can guide the driving direction of the user.

The first electronic module 17 is a Bluetooth module that can receive a Bluetooth mobile phone or other Bluetooth products.

The first electronic module 17 is a receiving module capable of receiving channels such as AM and FM.

The first electronic module 17 described above is a reversing camera module that can capture images of the rear of the vehicle.

The first electronic module 17 and the second electronic module 27 are connected to a USB device to read data in the USB device.

The first electronic module 17 and the second electronic module 27 are connected to an SD card to read data in the SD card; the first electronic module 17 is an iPod module. Connect an iPod and control the iPod.

The first electronic module 17 and the second electronic module 27 can execute at least one operating system or at least one software program, which is an operating system such as Windows CE, Windows XP, LINUX, Linex or Macintosh.

The second electronic module 27 is a digital television module that can play digital channel programs.

The first electronic module 17 and the second electronic module 27 can perform the functions of the first electronic module 17 and the second electronic module 27 through the menu operation of the OSD button group 26.

In the OSD button group 26 described above, after the user presses the remote start button 25, the OSD button group 26 originally displayed on the second touch screen 23 will automatically disappear after a set time (for example, 5 seconds).

The invention utilizes the connecting line 3 as a two-way transmission channel, and can transmit the coordinate signal on the first touch screen 13 of the front seat audio device 1 of the vehicle to the rear seat entertainment device 2, and the rear seat entertainment device 2 The coordinate signal on the second touch screen 23 and the OSD button group 26 signal are transmitted to the front seat audio device 1 of the vehicle, and the screen of the front seat audio device 1 is copied to the screen of the rear seat entertainment device 2, and is controlled. The screen of the rear seat entertainment device 2 is copied onto the screen of the front seat audio device 1 of the vehicle, and the video input key 15 of the front seat audio device 1 and the remote start button 25 of the rear seat entertainment device 2 are controlled to be switched. Pressing the button, and operating the front seat audio device 1 and the rear seat entertainment device 2 by the first touch screen 13 and 23 to transmit the control signal through the serial connection of the connection line 3 to achieve two-way mutual control and transmission .

FIG. 11 is a circuit block diagram of another embodiment of the present invention. The second touch screen 23 of the rear seat entertainment device further includes a main screen 230 and a sub-screen 231. The sub-screen 231 is provided with a remote control button A. The main screen 230 and the sub-screen 231 are connected to the front seat audio device 1 through a transfer box 4, and the transfer box 4 can transmit the coordinate signal on the first touch screen 13 of the front seat audio device 1 of the vehicle. The main screen 230 and the sub-screen 231 can also transmit the coordinate signal and the OSD button signal on the second touch screen 23 of the rear seat entertainment device 2 to the front seat audio device 1 and the sub-screen 231 of the vehicle. The coordinate signal on the sub-screen 231 of the rear seat entertainment device 2 and the OSD button signal are transmitted to the front seat audio device 1 and the second touch screen 23, and the screen of the front seat audio device 1 is copied to the main screen 23 and The screen of the secondary screen 231 and the second touch screen 23 of the rear seat entertainment device 2 are copied onto the screen of the front seat audio device 1 and the secondary screen 231, and the secondary screen of the rear seat entertainment device 2 231 screens can also be copied to the front seat audio unit 1 and The video input button 15, the remote control start button 25, and the remote control button A are control switch buttons of the front seat audio device 1 and the main screen 23 and the secondary screen 231 of the rear seat entertainment device 2, The control signals are transmitted to each other through the transfer box 4 to form a three-way interaction.

The electronic module 27 is a sub-screen module, which displays an A/V menu (as a control switching button) on a screen of a main screen and displays it on the sub-screen 231.

As shown in FIG. 12, if the first touch screen 13 of the front seat audio device 1 and the second touch screen 23 of the rear seat entertainment device 2 are different sizes, the coordinate signal needs to be converted. For example, the first touch screen 13 of the front seat audio device 1 of the vehicle has a resolution of 1200×900, and the second touch screen 23 of the rear seat entertainment audio and video device has a resolution of 800×600, and the first touch screen 13 is The (900,600) coordinate signal is scaled to the coordinate signal of the second touch screen 23 (600, 400), and the coordinate signals on the first touch screens 13, 23 are proportionally converted into the size of the other party and transmitted.

In order to prevent the rear seat passenger from operating indiscriminately and affecting the driver's control of the front seat audio device 1, the front seat audio device 1 can be set to have a function of rejecting the control of the rear seat entertainment device 2, for example, the [DISP] key 161 of the physical button 16. The setting has this function (as shown in the fifth figure), at which time the rear seat entertainment device 2 can still copy the display screen of the front seat audio device 1, but the front seat audio device 1 cannot be manipulated.

Based on the above control system of the present invention, the control method includes a control method of the front seat audio device 1 and a control method of the rear seat entertainment device 2, between the front seat audio device 1 and the rear seat entertainment device 2 Through the connection line 3, they will always receive the picture and coordinate signals transmitted by the other party, but only one picture and one standard signal number will be displayed at the same time.

As shown in the third figure, the control method of the front seat audio device 1 includes the following control steps: step A1, starting with the screen of the front seat audio device 1 of the vehicle: then jumping to step A2; step A2, physical button 16 Confirm: the user can press the physical button 16 of the corresponding function according to the usage requirement (as shown in the fourth figure, the physical button 16 includes a [RADIO] key to control the radio module to receive channels such as AM and FM; [NAVI] The key system controls the satellite navigation module to guide the user's driving direction; a [BT] key controls the Bluetooth module to answer the Bluetooth mobile phone or other Bluetooth products; and a [MEDIA] key controls the multimedia playing module to play the The file data read by the DVD module, the USB module, the SD module, and the iPod module; a [MUTE] key system controls the mute to stop the first sound output unit 12 (or the second sound output unit 22) from sounding A [MENU] key provides the main menu for adjustment of contrast/color/saturation, and a corresponding function screen appears on the first touch screen 13 of the front seat audio unit 1 of the vehicle. Corresponding electronic module After the action of 17, the user selects the screen option of the first touch screen 13 (for example, pressing the physical button 16 [RADIO] button, the radio function screen appears, and the user selects the channel AM of the screen option according to the demand, FM or a channel that has been set up, such as If there is no channel you want, click The frequency becomes smaller; otherwise, click The frequency becomes larger. If it is in the manual state, it needs to be continuously selected. If it is in the automatic state, click the conference and then pause the conference to stop in the nearest channel. After the execution is completed, jump back to step A1. If the physical button 16 is not pressed, skip to the step. A3; Step A3, the video input button 15 confirms that the user presses the video input button 15, indicating that the user wants to control the rear seat entertainment device 2, after pressing the video input button 15, the first touch screen 13 The operation screen displays the OSD button group 26, skipping to step A4, otherwise jumping back to step A1; step A4, displaying the screen of the rear seat entertainment device 2: after pressing the video input button 15, the screen is used by the front seat audio device 1 of the vehicle The screen is switched to the screen of the rear seat entertainment device 2 (as shown in the fifth figure). At this time, the first touch screen 13 appears, and the second touch screen 23 of the rear seat entertainment device 2 is currently being used. In the picture, go to step A5; in step A5, the first touch screen 13 clicks to confirm: when the user touches the first touch screen 13, the OSD button group 26 automatically disappears, and the rear seat entertainment device is displayed. 2 current picture (as shown in the sixth picture), user The coordinate signal of the first touch screen 13 is transmitted to the rear seat entertainment device 2, and the electronic module function screen corresponding to the coordinate on the second touch screen 23 of the rear seat entertainment device 2 is operated, and the function is clicked. Screen options on the screen (as shown in the sixth picture, for example, select to play [CD/DVD] or [Digital TV], [SD], [USB], [Main Screen A/V], [Sub Screen A/V], [Settings], Such as the screen option, wherein the [SD] and [USB] options are functions for reading the files of sound, video, picture and other files in the SD and USB external devices; the [Main Screen A/V] option is to display the main screen on a main screen. The screen A/V menu is displayed on the secondary screen 232; the [Sub Screen A/V] option is to display the main screen screen on a secondary screen A/V menu and display it on the secondary screen 232; [Setting] option is contrast/color /Saturation and other functions, The option is the return key, returning to the last use state), and the execution is completed and jumps back to step A4. If not, the process jumps to step A6; step A6, Key click confirmation: if the user presses the OSD button group 26 The key 261 (shown in FIG. 5) indicates that the front seat audio device 1 of the vehicle is to be released from the step A1 if the control of the rear seat entertainment device 2 is to be released; otherwise, if the confirmation is not clicked, the operation jumps back to step A4.

According to the above steps, after the video input button 15 is pressed, the operation screen of the first touch screen 13 displays the OSD button group 26 (as shown in FIG. 5), after a set time (for example, 5 seconds). Without any operation, the OSD button group 26 automatically disappears, displaying the current picture of the rear seat entertainment device 2 (as shown in the sixth figure), and when the first touch screen 13 is touched, the front seat speaker for the car at this time The device 1 is identical to the screen of the rear seat entertainment device 2, and the user can operate the rear seat entertainment device 2 through the first touch screen 13.

According to the above step A6, if the OSD button group 26 disappears (as shown in FIG. 6), when the vehicle front seat audio device 1 is to be re-controlled, the operation of the video input button 15 is changed to display the OSD button group 26 ( As shown in the fifth figure, click on the OSD button group 26 on the first touch screen 13 again. The key 261, or directly pressing the physical button 16 of the front seat audio device 1 of the vehicle, exits the connection operation with the rear seat entertainment device 2, and the screen is switched back to the first touch screen of the front seat audio device 1 of the vehicle. 13 picture (as shown in the fourth picture).

As shown in the seventh figure, it is a control method of the rear seat entertainment device 2, which comprises the following control steps: step B1, starting the screen of the rear seat entertainment device 2: then jumping to step B2; step B2, second touch Control screen 23 click to confirm: according to the user clicks on the coordinate signal of the second touch screen 23, the function screen of the rear seat entertainment device 2 is displayed, and then the screen option is selected (as shown in the eighth figure, the user You can choose to play [CD/DVD] or [Digital TV], [SD], [USB], [Main Screen A/V], [Sub Screen A/V], [Setting], And other function options; wherein the [SD] and [USB] options are functions for reading files such as sounds, videos, pictures and the like in the SD and USB external devices; the [Main Screen A/V] option is to display the main screen image in one The main screen picture A/V menu is displayed on the sub screen; the [sub screen A/V] option is to display the main screen screen on a sub screen picture A/V menu and display it on the sub screen; the [Setting] option is contrast/color Adjustment of functions such as degree/saturation; The option is the return key, returning to the last use state), jumping back to step B1 after execution is completed, skipping to step B3 if not selected; step B3, remote control start key 25 confirming: if the user presses the remote start button 25, Indicates that the user wants to control the front seat audio device 1 of the vehicle. After pressing the remote start button 25, the operation screen of the second touch screen 23 displays the OSD button group 26, and jumps to step B4. If the remote control is not pressed, the remote control is started. The key 25 jumps back to step B1; in step B4, the screen of the front seat audio device 1 is displayed: the screen has been switched from the screen of the rear seat entertainment device 2 to the screen of the front seat audio device 1 for the second touch. The screen of the control screen 23 is the screen that the front seat audio device 1 is currently using, and then jumps to step B5; in step B5, the OSD button group 26 clicks to confirm: the user can click the OSD button group 26 on the function screen. The function of the OSD button group 26 is equivalent to the function of the physical button 16 of the front seat audio device 1, and the OSD button group 26 includes [RADIO], [NAVI], [BT], [MEDIA], [MUTE]. 】, [MENU], [A/V] The function button is controlled by the OSD button group 26 to control the function corresponding to each electronic module 17 (as shown in FIG. 9). For example, when [RADIO] is clicked, the OSD button group 26 disappears after clicking ( As shown in the tenth figure, the user can choose to play the channel selection of the radio module, such as AM, FM or directly click on the set channel. If there is no channel you want, click The frequency becomes smaller, otherwise, click The frequency becomes larger. If it is in the manual state, it needs to be continuously selected. If it is in the automatic state, then click and put the meeting to stop in the nearest channel; at this time, the screen of the front seat audio device 1 and the rear seat entertainment device 2 If the screen option is to switch other functions such as the navigation mode, press the remote start button 25 to operate the screen switching screen to return to the screen of the ninth figure, and display the OSD button group 26, and then click the OSD button group 26. NAVI] enters the navigation mode, and the screen switches to the navigation screen. After the execution is completed, it jumps back to step B4. Otherwise, if it is not clicked, step B6 is performed; step B6, Key 261 click to confirm: if the user presses the OSD button group 26 The key 261 indicates that the rear seat entertainment device 2 is to release the control of the front seat audio device 1 for the vehicle, and jumps back to step B1 (exiting the connection operation screen with the front seat audio device 1 of the vehicle, and returns to the eighth picture); Otherwise, no point selection jumps back to step B4 (as shown in the ninth figure).

According to the above steps, after the remote start button 25 is pressed, the operation screen of the second touch screen 23 displays the OSD button group 26 (as shown in FIG. 9), after a set time (for example, 5 seconds) The OSD button group 26 automatically disappears (as shown in FIG. 10) without any operation, and when the second touch screen 23 is touched, the front seat audio device 1 and the rear seat entertainment device 2 are The screen is the same, and the user can operate the front seat audio device 1 through the second touch screen 23.

According to the above step B6, if the OSD button group 26 disappears (as shown in the tenth figure), when the rear seat entertainment device 2 is to be re-controlled, the operation button of the remote start button 25 is pressed to display the OSD button group 26 (As shown in FIG. 9), click on the OSD button group 26 on the second touch screen 23. When the key 261 is pressed, the connection operation with the front seat audio device 1 for the vehicle is exited, and the screen is switched back to the screen of the second touch screen 23 of the rear seat entertainment device 2 (as shown in FIG. 8).

In addition, the system is a two-way control, in order to avoid the control conflict between the vehicle car audio 1 and the rear seat entertainment device 2, the control method of the vehicle front seat audio device 1 of the system, wherein the front seat audio device is set in the step A3. 1 enters the state of controlling the rear seat entertainment device 2, and simultaneously cancels the function of the rear seat entertainment device 2 to control the front seat audio device 1; otherwise, the control method of the rear seat entertainment device 2 of the system, wherein the step B3 is set after the control The seat entertainment device 2 enters a state in which the front seat audio device 1 is controlled, and at the same time, releases the function of the front seat audio device 1 to control the rear seat entertainment device 2.

In order to avoid the inconvenience of the rear seat passengers, the driver is controlled to control the front seat audio device 1, the front seat audio device 1 can be set to have the function of rejecting the control of the rear seat entertainment device 2, and the step A2 is to set the physical button of the front seat audio device. [DISP] key system (as shown in the fifth figure) has a function of rejecting the control of the rear seat entertainment device 2, and pressing the [DISP] button, the rear seat entertainment device 2 can still copy the front seat audio device 1 The display screen, but the front seat audio unit 1 cannot be operated.

In summary, the two-way control system and the control method for the front seat audio device and the rear seat entertainment device of the present invention utilize the connection line as a two-way transmission channel, and the front seat audio device or the rear seat can be used for the car. The signal and picture copy of the device are transmitted to each other, and through the control of the physical button or the operation of the first and second touch screens, so that the signal can be mutually controlled and transmitted through the connection line, so that the missing of the formula can be effectively solved. Moreover, the technical means of the present invention are also absent from the prior case, and thus the present invention is particularly novel and practically beneficial.

The specific embodiments of the present invention are intended to be illustrative only and not to limit the scope of the present invention to the above embodiments, without departing from the spirit of the invention and the following claims. In the case of various changes made, it is still within the scope of the invention.

A1, A2, A3, A4, A5, A6. . . step

B1, B2, B3, B4, B5, B6. . . step

1. . . Front seat audio device

11. . . First central processing unit

twenty one. . . Second central processing unit

12. . . First sound output unit

13. . . First touch screen

14. . . First connection interface

15. . . Video input button

16. . . Physical button

161. . . [DISP] button

17. . . First electronic module

2. . . Rear seat entertainment device

twenty one. . . Second central processing unit

twenty two. . . Second sound output unit

twenty three. . . Second touch screen

230. . . Main screen

231. . . Secondary screen

twenty four. . . Second connection interface

25. . . Remote start button

26. . . OSD button group

261. . . key

27. . . Second electronic module

3. . . Cable

4. . . Adapter box

91. . . computer system

911. . . Computer host

912. . . shell

913. . . monitor

914. . . Operation panel

915. . . Connection

916. . . Connection slot

917. . . Touch screen

92. . . Electronic device

921. . . Audio device

922. . . Anti-theft device

923. . . Navigation device

924. . . Vehicle condition diagnostic device

925. . . Reversing aid

A. . . Remote button

The first figure is a three-dimensional exploded view of the formula.

The second figure is a block diagram of the circuit of the present invention.

The third figure is a control flow chart of the front seat acoustic device for a vehicle of the present invention.

The fourth figure is a schematic diagram (1) of the control mode of the present invention.

The fifth figure is a schematic diagram of the control mode of the present invention (2).

The sixth figure is a schematic diagram of the control mode of the present invention (3).

The seventh figure is a control flow chart of the rear seat entertainment device of the present invention.

The eighth figure is a schematic diagram of the control mode of the present invention (4).

The ninth diagram is a schematic diagram of the control mode of the present invention (5).

The tenth figure is a schematic diagram of the control mode of the present invention (6).

Figure 11 is a circuit block diagram of another embodiment of the present invention.

The twelfth figure is a schematic diagram of the coordinate conversion of the coordinates of the present invention.

1. . . Front seat audio device

11. . . First central processing unit

12. . . First sound output unit

13. . . First touch screen

14. . . First connection interface

15. . . Video input button

16. . . Physical button

17. . . First electronic module

2. . . Rear seat entertainment device

twenty one. . . Second central processing unit

twenty two. . . Second sound output unit

twenty three. . . Second touch screen

twenty four. . . Second connection interface

25. . . Remote start button

27. . . Second electronic module

3. . . Cable

Claims (14)

The utility model relates to a two-way control system for a front seat audio device and a rear seat entertainment device, which comprises a front seat audio device, a rear seat entertainment device and a connecting line, wherein: the front seat audio device of the vehicle comprises: a first central processing unit that integrates interfaces, processes audio and video operations, and processes each input signal; a first sound output unit is coupled to the first central processing unit, and outputs are output through the first central Processing the sound of the unit after the sound processing; a first touch screen is connected to the first central processing unit, displaying the image processed by the first central processing unit, and receiving the operation on the first touch screen, and Sending a coordinate signal to the first central processing unit for corresponding operation, and displaying a picture of the rear seat entertainment device; a first connection interface connecting the connection line and the first central processing unit, the first The connection interface outputs a picture of the front seat audio device of the vehicle and a coordinate signal on the first touch screen, and receives a picture of the rear seat entertainment device and the back seat a coordinate signal of the second touch screen of the music device, and an OSD button group signal of the rear seat entertainment device; a video input button connected to the first central processing unit, which is a control switch button, and the video input button control The display screen of the front seat audio device of the vehicle is switched to the screen of the rear seat entertainment device for controlling the rear seat entertainment device by the front seat audio device; the rear seat entertainment device includes: a second central processing a unit that integrates interfaces, processes sound effects and images, and input signal processing; a second sound output unit is coupled to the second central processing unit, and outputs the sound after being processed by the second central processing unit The second touch screen is connected to the second central processing unit to display the image processed by the second central processing unit, and receives the operation on the second touch screen, and sends the coordinate signal to the second The second central processing unit operates correspondingly and can display the picture of the front seat audio device of the vehicle; a second connection interface is connected to the connection line and a second central processing unit, the connection interface is configured to output a picture of the rear seat entertainment device and a coordinate signal of the second touch screen, and a signal of the OSD button group, and receive a picture of the front seat audio device of the vehicle and the first a coordinate signal on the touch screen; a remote start button connected to the second central processing unit is a control switch button, and the remote start button controls the display screen of the rear seat entertainment device to switch to the front seat audio device of the vehicle a screen for controlling the front seat audio device of the vehicle by the rear seat entertainment device; the OSD button group is a function menu displayed on the second touch screen, and the OSD button group is clicked to operate the vehicle a front seat audio device; the connection line is connected to the first connection interface of the front seat audio device of the vehicle and the second connection interface of the rear seat entertainment device as a two-way transmission channel; by using the components of the above components, The connecting line is used as a two-way transmission channel, and the coordinate signal on the first touch screen of the front seat audio device is transmitted to the rear seat entertainment device, and the rear seat entertainment device is installed The coordinate signal and the OSD button signal on the second touch screen are transmitted to the front seat audio device of the vehicle, and the picture of the front seat audio device of the vehicle is copied to the screen of the rear seat entertainment device, and the rear seat entertainment device The screen is copied to the screen of the front seat audio device of the vehicle, and the video input button of the front seat audio device and the remote start button of the rear seat entertainment device are control switch buttons, and the first and second touches are The control panel operates the car audio device and the rear seat entertainment device, so that the control signal is mutually controlled and transmitted through the connection line. The two-way control system for a front seat audio device and a rear seat entertainment device according to the first aspect of the invention, wherein the front seat audio device further comprises a plurality of physical buttons connected to the first central processing unit. The control button for executing each electronic module function; the function of the OSD button group includes the functions of the plurality of physical buttons of the front seat audio device of the vehicle, and the operation function of the physical button. The two-way control system for the front seat audio device and the rear seat entertainment device according to claim 1, wherein the transmitted image is an LVDS digital image. For example, the two-way control system for the front seat audio device and the rear seat entertainment device according to the first aspect of the patent application, wherein the transmitted image is a composite analog image. The two-way control system for the front seat audio device and the rear seat entertainment device according to claim 1, wherein the first touch screen of the front seat audio device and the second touch screen of the rear seat entertainment device For different sizes, the first touch screen and the coordinate signal on the second touch screen are scaled to the size of the other party and then transmitted. The two-way control system for the front seat audio device and the rear seat entertainment device according to the first aspect of the invention, wherein the second touch screen of the rear seat entertainment device further comprises a main screen and a sub-screen, the sub-screen There is a remote control button, and the main screen and the secondary screen are connected to the front seat audio device through a transfer box to form a three-way interactive connection. The two-way control system for a front seat audio device and a rear seat entertainment device according to claim 1, wherein the front seat audio device further comprises a plurality of physical buttons connected to the first central processing unit, the plurality of The physical button setting [DISP] key has a button for rejecting the control of the rear seat entertainment device. A two-way control method for a front seat audio device and a rear seat entertainment device includes a control method of a front seat audio device and a control method of a rear seat entertainment device, between the front seat audio device and the rear seat entertainment device, The screen and the coordinate signal transmitted by the other party will be received by each other through a connection line, but only one picture and one standard signal number will be displayed at the same time point, wherein: the control method of the front seat audio device includes the following control steps: Step A1 Start the screen for the front seat audio device of the car, and then go to step A2; in step A2, the physical button confirms that the user can press the physical button of the corresponding function according to the use requirement, and the first touch of the front seat audio device of the vehicle On the screen, the corresponding function screen appears, so as to control the operation of the corresponding electronic module, and then the user selects the screen option of the first touch screen, and the execution jumps back to step A1, and if the physical button is not pressed, jumps to Step A3; Step A3, the video input key confirms, the user presses the video input key, indicating that the user wants to control the back seat The music device displays the OSD button group on the operation screen of the first touch screen after pressing the video input button, and jumps to step A4, otherwise jumps back to step A1; step A4 displays the screen of the rear seat entertainment device. The screen has been switched from the screen of the front seat audio device to the screen of the rear seat entertainment device, and the second touch screen screen of the rear seat entertainment device is the screen in use at the time, and jumps to step A5; step A5, A touch screen is selected and confirmed, and the user transmits the coordinate signal of the first touch screen to the rear seat entertainment device, and operates the electronic module function screen corresponding to the coordinate on the second touch screen screen of the rear seat entertainment device. And click on the screen option on the function screen. After the execution is completed, jump back to step A4. If not, skip to step A6; step A6, Click to confirm, if the user clicks on the OSD button group The key indicates that the front seat audio device of the vehicle is to be released from the control of the rear seat entertainment device, and jumps back to step A1; otherwise, if the confirmation is not clicked, it jumps back to step A4; the control method of the rear seat entertainment device includes the following Control step: Step B1, start the screen of the rear seat entertainment device 2, and then jump to step B2; Step B2, the second touch screen click to confirm, according to the user clicks on the coordinate signal of the second touch screen, and displays The rear seat entertainment device function screen, and then the screen option click operation, after the execution is completed, jump back to step B1, if not clicked, skip to step B3; step B3, the remote start button confirm, if the user presses the remote start button , the user wants to control the front seat audio device of the vehicle. After pressing the remote start button, the operation screen of the second touch screen displays the OSD button group, and jumps to step B4, otherwise jumps back to step B1; step B4 The screen of the front seat audio device of the vehicle is displayed. At this time, the screen of the rear seat entertainment device is switched to the screen of the front seat audio device, and the screen of the front seat audio device is When the screen is in use, then go to step B5; in step B5, the OSD button group click to confirm, the user can select the option of the OSD button group on the second touch screen selection function screen, and the execution jumps back to step B4. Conversely, if not selected, step B6 is performed; step B6, Click to confirm, if the user presses the OSD button group The key indicates that the rear seat entertainment device is to release the control for the front seat audio device of the vehicle, and jumps back to step B1; otherwise, the jump to step B4 is not selected. The two-way control method for the front seat audio device and the rear seat entertainment device according to claim 8, wherein the step A3 sets the state of the front seat audio device to control the rear seat entertainment device, and simultaneously releases the rear seat entertainment device. The device controls the function of the front seat audio device. The two-way control method for the front seat audio device and the rear seat entertainment device according to the eighth aspect of the invention, wherein the step B3 sets the rear seat entertainment device to enter the state of controlling the front seat audio device, and simultaneously releases the front seat audio device. Control the function of the rear seat entertainment device. The two-way control method for the front seat audio device and the rear seat entertainment device according to the eighth aspect of the invention, wherein after pressing the video input button, the operation screen of the first touch screen displays the OSD button group, if If there is no operation after more than one set time, the OSD button group will disappear automatically. The two-way control method for the front seat audio device and the rear seat entertainment device according to claim 8 , wherein after pressing the remote start button, the operation screen of the second touch screen displays the OSD button group, if If there is no operation after more than one set time, the OSD button group will disappear automatically. The two-way control method for the front seat audio device and the rear seat entertainment device according to the eighth aspect of the invention, wherein the step A2 sets a [DISP] key of the physical button of the front seat audio device, and has a rejection of the rear The function of the entertainment device control, pressing the [DISP] button, the rear seat entertainment device can still copy the display screen of the front seat audio device, but the front seat audio device cannot be controlled. The method for controlling the two-way control of the front seat audio device and the rear seat entertainment device according to claim 8, wherein the step A6 sets a physical button for pressing the front seat audio device, indicating that the front seat audio device of the vehicle is to be released. Control of the rear seat entertainment device, jump back to step A1.